Paper-crinkling machine



OCL 2',

WHA. LORENZ PAPER CRINKLING MACHINE Filed March 18. 1927 2 Sheets- Sheet w. A. LORENZ iArER c RmxLING MACHINE 2 Sheets-Sheet 2 Enea waren 18. 1927 Patented oct. 2, 1.928,-

UNITED STATES r 1,688,888 PATENT orFicEj.

WILLIAM A.. LORENZ, 'OF WEST HARTFORD, OONNCTICUT, 'ASSIGNO TO THEV OTAKA FABRIC COMPANY, OF WEST HARTFORD, CONNECTICUT, A CORPORATION OF vCON- v NEeTIcU'r.

PPEE-CRINKLING MACHINE.'

. Application led March 18, 1927. Serial No. 136,424.

This invention relates to the method of and apparatus for crinkling'and corrugating paper.`

The aim of the present invention is to provide an improved method and-a simple and effective ina-chine for expeditiously and economically crinkling and corrugating paper so as to make it elastic in all directions.

A further aim of vthe invention is to provide an improved method of, and a simple and effective apparatus for, rst-crinkling the paper across the sheet and immediately thereafter, and while the crinkled paper is still Wet, longitudinally corrugating i Without injury thereto. l

Other objects will be in part obvious and in part pointed out more in detail hereinafter. .i

rlhe invention accordingly consists in the features of construction, combination of elements and arrangement of parts which will be` exemplified in the construction hereinafter set forth and thescope of the application of which will be indicated in the ap.

pended claims.

In the accompanying drawings z" Figure 1 is a plan view of the ipparatus;

Fig. 2 is a sectional view taken substantially on line 21-2 of Fig. 1;

Fig. 3 is an enlarged detail view of a portion of the crinkling and corrugatin elements shownin Fig. 2, the crinkle and corrugated paper being illustrated; y

Fig. 4 is a detail view of portions of the crinkling and corrugating elements shown in Fig. 3 with the paperremoved;

Fig. 5 is a view similar to Fig. v3 but showing a slightly different embodiment and the paper being omitted; v

Fig. 6 is a partial detail view of what is shown in Fig.. iwithvthe paper illustrated between the corrugating elements; and' Fig. 7 is an enlarged sectional view of.

portions o the roll 29 and the doctor blade, this view being taken substantially on line In the drawings, 10 and 11 designate vthe uprights of the frame which may be tied together in any suitable way. The numeral 12 designates the roll ot paper carried by a shaft 13 supported in brackets 14 at one end of the machine. The pa erpasse's from the roll 12 over the guide ro 1 5 and under a pair 'of rolls 16 located ina 4tank 18 containing Water. The paper web then 'passes upwardly, as at 20, ontok a cylinder 21 against which 1t 1s pressed by a rubber faced roll 22. The gudgeons of the roll 22 are mountedV in suitable slidable bearings 23 behind which are adjustable springs 211; so that the pressure with which the roll bears against t e cylinder may be varied at will.

This roll squeezes excess water outoiv the paper and causes the to the cylinder.

rThe paper is carried by the roll 2l against paper to hug or adhere the forward edge 25 of a doctor blade. CO-

operating with` thisv blade is 'a roller 29 Wlnch',in Figs. 2 and 3, is located immediately above the edge 25 of the doctor blade. rhe doctor blade, immediately behind the edge 25 and between the points 25 and 30,

is relativelyV straight -and is then curved, 'as at 31, correspondingly to the curvature of the roller 29. Thus,'there is provided between the doctor blade and the roller a relatively narrow, uniform channel. The-fdoctor blade preferably forms the front face or wall of a hollow-box 32 4which is preferably heated by steam which may be supplied by a pipe 33. The roller' 29 may also be heated by steam or other medium 'supplied through a pipe 34. The roller 29 is circumferentially corrugated and thel curved face 31 of the' doctor blade is also corrugated so as to match the configuration of the periphery of the-roller 29. in the drawings, the roller 29- is shown as having circumferential ribs 36 and grooves 37 which are respectively opposite to the grooves 27 and the'ribs 26 provided in the front face of the doctor blade. 38

'designates a roller cooperating with the roller 29, and this roller 38 is also corrugated with its corrugations meshing with thev corrugations of the roller 29. rlhe corrugated roll 29 and the'corrugated surface of the `doctor blade are so spaced apart that the creped paper, as shown in F ig.- 7, engages the tops of the corrugations or ribs 26and 36 and the crinkled paper is not forced to the bottom of the grooves 27 and 37. I The operation of the machine is brieflyas follows: The paper is carried bythe cylinder 21 against the edge 25 of the doctor blade, resulting in crinkling vof the paper.' The crinkledp'aperthen passes over'the smooth l andiiungrooved portion 'ofthe'` doctor bladeiiuntransversely crinlrlinglapap'er web'i'whilem 'i v between the ioints 25 and 30 and then be- Wet, and immediately t .tween thefro e ereafter and while r 29 and -the-'groovedportion thecrinkled paper is wet andheated .longi- 3l of the. doctor blade. Owingto the" co- 'tudi-nally corrugating thecrinkledpa er. 4olll'erating corru ations on the roller 429 and '3.- `The herein described method o mak- 70 `t e curved surl ace 31l of the doctor. blade, ing paper elastic in all directions, whichlconthecrinkled paper, passing the rebeipweeml is" siste t1n'[transversely crinkling'afwet pa er longitudinall corrtedwhile thd paper is v"web by movmg the Samb against the e ge! still wet. T e cri ed and longitudinally ofa doctor blade, and longitudinally corruvcorrugated pager is gripped by the rollers gating the crinkled wekwhll Wet by passing 75 l' 29 and 38 an 39. It isimportant to note'that the paper members lmmedlate y afliecentthe Crmkling passes oven a lguide roller the wet crinkled pa er b`etweencorrugating is corru ated immediately after' it is crinkledfedge. l and wh' e the paper is still wet, .the rinkling 4. The herem described method of makand corrugating operations'being continuing paper elastic in all directions, which'con- 80 I ous g. that is, without interrupting the move SISS in wetting-a paperrweb, Grlnklng thtA .paper is not forceddown to the bottom of 0f doctor bla ment f the paper, Fu thermow sinthe wet'web by movin"r thesame against the edge (le, and then immediate y v the g'ooves in the vcorrugatin' members, the corrugating the crinkled web while 4wetend.

;so to speak and, injury to the paper is pe- 111g the ed paper is only 'parta corrugated VVhOllt interrupting its mOVemeIit b "P888" 35 erin vsame between a corrugated ro erfand vented, The paper, however, is' suiliciently .e 000 ereting ciiiugel'fed Slllfe'cev corru ated to make it transversely elastic. 5- he hel'eln descl'lbed'methel O maklng It wi l beseen, particularly from'Fig. 7, RePe1` eieStic ii, directions; Which ccnthat during the corrugating operation, .the SISSIII iiISt ciinkiiiig thelie/Pei'lietei'eiig' 0 0 y convex surface of the corrugations in the and than forming Pelftl i flellgit'lldill paper are not pressed upon by nor engaged grooves mthe ltell'lly clllkled Pepelwlllle with, the corru ating rollers., the'plaper isstill wet'.l i In the'embo iment shown in Figs.v 5 and 6. lle herem descrlbedmethod O f mkmg oor-responding arts shown in the preceding- SSSS 4ill first Qinklilg the Wet paperweb embodiment. n this instance, however, the lelielelly and thelllmllll'fllnlly roller 29, instead. of being positioned imthe Crlnklefl puper'w 11e st1ll` wet byipass mediately over the edge 25 of the doctor ing thesame between corugatng members blade, lis spaced rearwardly o f that, oint any end Without` engagmg, the' C QIWQX BUIECGS 10uap reciable extent. As in the prece ing ern- 0f the COllllg'81110118.l

p bo ment, thepaper will becrinkled when 7: Ill 8 machine fOr'Hlii-n" y it IStrikes theedge 25 of the doctor' blade and in all directions meansffor -aerany erin will be corrugated as it isnpassed between' klmg the )pa er, and means forumnedia{ge-1y.-` 4

r the cooperatin corrugated surfaces of the thereafter Orming 4'yiciigiiud'iiel cclfi'ligllf-'-1.05

ro11er29 and t e doaorblader t-iOnS'in the rapen` As many changes could be made in the 8. In a machine for'makingpaper elastic y above construction andxmany a parently 1n eli dlieeiicney doctora-blade; means; fOr widely different Lelibodifme'nts of 51e invenmcvmgle Papel Wel) 4llgelnel llleadeelOl tion could be made-withoutdepartn fromv blade t0A laterally crmkle .the papq'yend. 110

i i the scope thereof,:it isintendedLthat a mat- 'ineens' .immedietei behind the c1. A. ter `contained in the above description or. edge 0f the'dcctol lede fci' ceii'ligetiiiglill e"l shown in thefaccom anying drawings shall Peper A' l It is also to be` understood that 'the 1antoliblade'cooperating therewith 01ml 1- -bejinterpreted' as i ustrativeand not in 'a -9- ID-mgflhine'forfnalring pa 'Ieri limiting sensa-q v 1n -all d1rect1ons,'a'crinklingcylm e' ccf Willi' gual e usedin the'following'claimsl is inf aobrrugat'ed curved facefrearwardl .of f-5 ten ed tocover all of the gneric and s -ri11kling edgev and acorrugated ro ercon cie features ofthe invention herein e- '.-Celt11 c- 't0 Seidl-facer i Y -1 scribed and all statements ofthe scope of the` '10- 111i e machine fOl' making 'Pelei elastici/"lad er' i invention which, as a matter o filanguage,j mall directions,'-a'crinkling` cyl1' 'means-.1.1

, mi ht be said to fall therebetween.

fOImOiStellllg a paper-'web delivere there?.

claim as my inventiong'- to, a doctoriblde cooperatin withijsaid-cyl-l l. 1. The herein described'method ofinaking\ inder. andilievng. rearwar y of '.ite^ =1"1n'fF f 1n .crinkling a wet pa er. we forming lon 'tudina paperelastie in al1 directions whichconsists kling ds@ .a orfrugied'urved surface, lm

b laterally and corrugatedro1lercoperatingwith said' su' f lextendln grooves face for corrugating thepaperpassing .j

inthe Hinkle Paperw. llefitis Sti wet. I tween'said ro11erand-surfaceandmeans or?" 2. The herein described methodfof makingheatin said roller and surface.

. 4paper in all directions, which consists 11. na'machine for' makiiig'paper 'elastici in all directions, means for laterally crinkling the paper, and means for longitudinally and partially grooving the laterally crinkled paper.

12. In a machine for makingpaper elastic in all directions, means for wetting a paper web, means for laterally crinkling the wet paper web, and means for forming partial longitudinal grooves in the laterally crin- 10 kled web while the same is still damp. h

13. In amachine for making paper elastic in all directions, means for crinkling a paper web transversely, and means for longitudinally corrugating the crinkled web, said cor,-

' 15 rugating means being arranged to corrugate the crinkled paper without engagin the con.-

vex surfaces of the ribs formed 1n t e paper.

`kling the wet web', and corrugated members for longitudinall corrugating the orinkled web while still am said members being arranged so that the paper willen age the tops of the corrugations on said mem rs and wlll not be forced into engagement with the bottoms of grooves between the corrugations.

WILLIAM 2A. LORENZ. 

